[test] Run the verifier for dsymutil module tests
Dsymutil has an option "verify" that runs the dwarf verifier on the
generated dSYM. This patch enables this for the module tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353544 91177308-0d34-0410-b5e6-96231b3b80d8